diff --git a/ext-src/php_swoole_private.h b/ext-src/php_swoole_private.h
index b6a5379157..3ebbdfde6d 100644
--- a/ext-src/php_swoole_private.h
+++ b/ext-src/php_swoole_private.h
@@ -512,7 +512,13 @@ static inline bool sw_is_main_thread() {
 #endif
 }
 
-size_t sw_get_active_thread_count(void);
+#ifdef SW_THREAD
+size_t sw_active_thread_count(void);
+#else
+static inline size_t sw_active_thread_count(void) {
+    return 1;
+}
+#endif
 void sw_php_exit(int status);
 
 //----------------------------------Constant API------------------------------------
diff --git a/ext-src/swoole_runtime.cc b/ext-src/swoole_runtime.cc
index 9785f386cc..0d292c6b2e 100644
--- a/ext-src/swoole_runtime.cc
+++ b/ext-src/swoole_runtime.cc
@@ -1645,7 +1645,7 @@ bool PHPCoroutine::enable_hook(uint32_t flags) {
      * the main thread can only make changes when there are no active worker threads.
      */
     if (sw_is_main_thread()) {
-        if (sw_get_active_thread_count() > 1) {
+        if (sw_active_thread_count() > 1) {
             zend_throw_exception(swoole_exception_ce,
                                  "The stream runtime hook must be enabled or disabled only when "
                                  "there are no active threads.",
diff --git a/ext-src/swoole_thread.cc b/ext-src/swoole_thread.cc
index c8d581b62e..6969620643 100644
--- a/ext-src/swoole_thread.cc
+++ b/ext-src/swoole_thread.cc
@@ -380,9 +380,9 @@ void php_swoole_thread_rshutdown() {
     if (!tsrm_is_main_thread()) {
         return;
     }
-    if (sw_get_active_thread_count() > 1) {
+    if (sw_active_thread_count() > 1) {
         swoole_warning("Fatal Error: %zu active threads are running, cannot exit safely.",
-                       sw_get_active_thread_count());
+                       sw_active_thread_count());
         exit(200);
     }
     if (request_info.path_translated) {
@@ -507,7 +507,7 @@ int php_swoole_thread_get_exit_status(pthread_t ptid) {
     return thread_exit_status.get(ptid);
 }
 
-size_t sw_get_active_thread_count(void) {
+size_t sw_active_thread_count(void) {
     return thread_num.load();
 }